Home / 8,135.19-12,202.79-2,291.04

Finding the Fourth Proportional to 8,135.19, 12,202.79 and 2,291.04

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Solution

The fourth proportional to 8,135.19, 12,202.79 and 2,291.04 is: 3,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.19 : 12,202.79 = 2,291.04 : x
  2. Step 2: Convert to fraction form
    8,135.19/12,202.79 = 2,291.04/x
  3. Step 3: Cross multiply
    8,135.19x = 12,202.79 × 2,291.04
  4. Step 4: Simplify right side
    8,135.19x = 27,957,068.55
  5. Step 5: Solve for x
    x = 27,957,068.55/8,135.19
  6. Step 6: Final answer
    x = 3,436.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.